Suka Parwita, Wayan Gede, et al. “PERANCANGAN SISTEM REKOMENDASI DOKUMEN DENGAN PENDEKATAN CONTENT-BASED FILTERING”. CESS (Journal of Computer Engineering, System and Science), vol. 3, no. 1, Jan. 2018, pp. 65-74, doi:10.24114/cess.v3i1.7855.